RFID tags

A system and method for the use of ultra high frequency RFID tags in conjunction with metal substrates, as well as substrates used to contain liquid. Briefly, an RFID isolator comprised of a material with complex magnetic permeability, used either by itself, or in combination with dielectric isolato...

Full description

Saved in:
Bibliographic Details
Main Authors CARPENTER MICHAEL P, GIBBS DAVID A, DIXON PAUL F, OSWARD MARY M
Format Patent
LanguageEnglish
Published 26.07.2007
Subjects
ALARM SYSTEMS
CALCULATING
COMPUTING
COUNTING
HANDLING RECORD CARRIERS
ORDER TELEGRAPHS
PHYSICS
PRESENTATION OF DATA
RECOGNITION OF DATA
RECORD CARRIERS
SIGNALLING
SIGNALLING OR CALLING SYSTEMS
Online AccessGet full text

Cover

More Information
Summary:A system and method for the use of ultra high frequency RFID tags in conjunction with metal substrates, as well as substrates used to contain liquid. Briefly, an RFID isolator comprised of a material with complex magnetic permeability, used either by itself, or in combination with dielectric isolator material, is interposed between the RFID tag and the substrate. Alternatively, a material possessing at least two distinct dielectric constants is interposed between the RFID tag and the substrate, such that there is a high dielectric constant at the interface with the substrate, and a low dielectric constant at the interface with the RFID tag. This material can be a single material having a dielectric constant gradient, or alternatively, two or more separate layers, each with a uniform but different dielectric constant, sandwiched together.
Bibliography:Application Number: US20070731435